
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Helvetica, 'PingFang SC', 'Microsoft Yahei', sans-serif;
    font-size: 14px;
  }
  img {
    width: 100%;
  }
  
  :root {
    --primary-color: #ff434f;
    --secondary-color: #e3e3e3;
    --text-color-lightest: #e7e9ec;
    --text-color-darker: #2e2e2e;
    --text-color-dark: #494949;
    --text-color-gray: #8b8b8b;
    --text-color-dark-gray: #727272;
    --text-color-light-gray: #c6c6c6;
    --background-color: rgba(42,42,42, 0.6);
  }
  
  header {
    width: 100vw;
    height: 80px;
    display: grid;
    padding: 0 40px;
  
    grid-template-columns: 1fr 2fr;
    align-items: center;
    position: relative;
    z-index: 200;
  }
  .logo {
    font-size: 24px;
    font-weight: 600;
    color: var(--text-color-lightest);
  }
  
  header nav {
    justify-self: end;
  }
  
  header nav i,
  header nav a {
    color: var(--text-color-lightest);
  }
  header nav a {
    text-decoration: none;
    margin: 0 24px;
  }
  
  header .burger {
    display: none;
  }
  
  header.sticky {
    position: fixed;
    background-color: #fff;
    box-shadow: 0 0 18px rgba(0, 0, 0, 0.2);
    animation: dropDown 0.5s ease-in-out forwards;
  }
  
  header.sticky .logo,
  header.sticky nav a,
  header.sticky nav i {
    color: var(--text-color-darker);
  }
  
  @keyframes dropDown {
    0% {
      transform: translateY(-100px);
    }
    100% {
      transform: translateY(0);
    }
  }
  
  
  .glide {
    position: relative;
    top: -80px;
    z-index: 50;
  }
  
  .glide__slide img,
  .glide__slide video {
    width: 100vw;
    height: 100vh;
    object-fit: cover;
  }
  
  .glide__slide {
    display: flex;
    justify-content: center;
    align-items: center;
  }
  
  .slide-caption {
    position: absolute;
    z-index: 70;
    color: var(--text-color-lightest);
    text-align: center;
    max-width: 60vw;
  }
  
  .slide-caption h1 {
    font-size: 54px;
    font-weight: 600;
  }
  
  .slide-caption h3 {
    font-size: 24px;
    margin: 48px;
  }
  
  .slide-caption > * {
    opacity: 0;
  }
  
  .backdrop {
    background: var(--background-color);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 60;
    opacity: 0.5;
  }
  
  .explore-btn {
    padding: 14px 32px;
    background-color: var(--primary-color);
    border: none;
    border-radius: 5px;
    color: var(--text-color-lightest);
    font-size: 18px;
    cursor: pointer;
    outline: none;
  }
  
  /* 内容区域通用样式 */
  
  .content-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
  }
  
  section {
    display: grid;
    justify-items: center;
    max-width: 1180px;
    padding: 0 80px;
  }
  
  .section-bg {
    position: relative;
  }
  
  .section-bg::before {
    content: '';
    display: block;
    position: absolute;
    background-color: #f9f9f9;
    width: 100vw;
    height: 100%;
    z-index: -1;
  }
  
  .title1 {
    font-size: 34px;
    color: var(--text-color-darker);
  }
  
  .title1::after {
    content: '';
    display: block;
    width: 80%;
    height: 4px;
    background-color: var(--primary-color);
    margin-top: 14px;
    transform: translateX(10%);
  }
  
  .intro {
    margin: 28px 0 60px 0;
    font-size: 18px;
    color: var(--text-color-dark-gray);
  }
  
  /* 关于我们 */
  .about-us {
    padding-bottom: 32px;
  }
  
  .features {
    display: grid;
    /* 生成3列，每列1fr， 等于 1fr 1fr 1fr */
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: 126px 126px;
    column-gap: 5vw;
  }
  
  .feature {
    display: grid;
    grid-template-areas: 'icon title' 'icon content';
    grid-template-columns: 60px 1fr;
    grid-template-rows: 1fr 3fr;
  }
  
  .feature i.fas {
    grid-area: icon;
    font-size: 34px;
    color: var(--primary-color);
  }
  
  .feature-title {
    grid-area: title;
    font-size: 18px;
    color: var(--text-color-darker);
  }
  
  .feature-content {
    grid-area: content;
    color: var(--text-color-gray);
    margin-top: 8px;
  }
  
  /* 成功案例 */
  .showcases {
    max-width: unset;
    padding: 0;
    padding-top: 72px;
  }
  
  .filter-btns {
    margin-top: 54px;
    margin-bottom: 38px;
  }
  
  .filter-btn {
    margin: 0 7px;
    background-color: var(--secondary-color);
    border: none;
    color: var(--text-color-dark-gray);
    padding: 8px 18px;
    border-radius: 4px;
    cursor: pointer;
    outline: none;
    transition: 0.4s;
  }
  
  .filter-btn.active,
  .filter-btn:hover {
    background-color: var(--primary-color);
    color: white;
  }
  
  .showcases .cases {
    width: 100vw;
  }
  
  .showcases .case-item {
    /* 单位保持一致，画面不会拉伸，item比例是5:4 */
    width: 25vw;
    height: 20vw;
    overflow: hidden;
  }
  
  .case-item img {
    height: 100%;
    object-fit: cover;
  }
  
  /* 服务流程模块 */
  .service {
    padding-top: 131px;
  }
  
  .services {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: 1fr 1fr;
    /* 列与列的间距 */
    column-gap: 38px;
    /* 行与行的间距 */
    row-gap: 34px;
  }
  
  .service-item {
    display: grid;
    grid-template-areas: 'icon title' 'icon content';
    grid-template-columns: 70px 1fr;
    grid-template-rows: 1fr 3fr;
    padding: 24px;
    box-shadow: 0px 0px 18px rgba(0, 0, 0, 0.06);
  }
  
  .service-item i.fas {
    grid-area: icon;
    font-size: 42px;
    color: var(--primary-color);
    padding-top: 6px;
  }
  
  .service-item .service-title {
    grid-area: title;
    color: var(--text-color-darker);
    font-size: 24px;
  }
  
  .service-item .service-content {
    grid-area: content;
    color: var(--text-color-gray);
    line-height: 30px;
    font-size: 16px;
    margin-top: 8px;
  }
  
  /* 团队介绍 */
  .team-intro {
    margin-top: 48px;
    padding-top: 68px;
    padding-bottom: 52px;
  }
  
  .team-members {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    column-gap: 24px;
    margin-top: 86px;
  }
  
  .team-member {
    background-color: #fff;
    box-shadow: 0px 0px 24px rgba(0, 0, 0, 0.2);
    padding-bottom: 28px;
    transition: 0.4s;
    
    display: grid;
    justify-items: center;
  }
  
  .profile-image {
    overflow: hidden;
  }
  
  .profile-image img {
    width: 100%;
    height: 264px;
    object-fit: cover;
    object-position: top center;
  }
  
  .team-member .name {
    margin-top: 18px;
    font-size: 18px;
    font-weight: 500;
    color: var(--text-color-darker);
  }
  
  .team-member .position {
    color: var(--text-color-dark-gray);
    margin-top: 12px;
    margin-bottom: 18px;
  }
  
  .social-links {
    width: 100%;
    max-height: 200px;
    display: flex;
    justify-content: space-evenly;
    padding: 0 80px;
  }
  
  .social-links li {
    list-style: none;
  }
  
  .social-links li a {
    color: var(--text-color-dark);
    font-size: 20px;
    text-decoration: none;
  }
  
  .team-member:hover {
    transform: translateY(-20px) scale(1.05); /* 模拟远离地面的效果 */
    box-shadow: 0px 0px 36px rgba(0, 0, 0, 0.1);
   
  }
  
  .data-section {
    max-width: unset;
    width: 100vw;
    height: 225px;
    background-image: url(images/adult-business-computer-contemporary-380769.jpg);
    background-size: cover;
    background-position: center;
  
    display: grid;
    grid-template-columns: repeat(4, minmax(auto, 220px));
    justify-content: center;
    align-items: center;
    position: relative;
    z-index: 20;
  }
  
  
  .data-section::before {
    content: '';
    display: block;
    position: absolute;
    background-color: var(--backdrop-color);
    width: 100%;
    height: 100%;
    z-index: 1;
  }
  
  .data-piece {
    width: 250px;
    display: grid;
    grid-template-rows: repeat(3, 1fr);
    justify-items: center;
    color: #fff;
    position: relative;
    z-index: 40;
  }
  
  .data-piece i.fas {
    font-size: 44px;
  }
  
  .data-piece .num {
    margin-top: 7px;
    font-size: 42px;
    font-weight: 600;
  }
  
  .data-piece .data-desc {
    font-size: 18px;
    font-weight: 500;
  }
  
  .company-activities {
    margin-top: 88px;
  }
  
  .activities {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    column-gap: 24px;
  }
  
  .activity {
    box-shadow: 0 0 24px rgba(0, 0, 0, 0.1);
    padding: 24px;
    transition: 0.4s;
  }
  
  .act-image-wrapper {
    height: 225px;
    overflow: hidden;
    margin: -24px;
    margin-bottom: 0;
  }
  
  .act-image-wrapper img {
    min-height: 300px;
    object-fit: cover;
  }
  
  .activity .meta {
    margin-top: 20px;
    margin-bottom: 12px;
    color: var(--text-color-lightest);
    font-size: 12px;
    display: flex;
    /* justify-content: space-between; */
  }
  
  .activity .meta > p:last-child {
    margin-left: 36px;
  }
  
  .activity .act-title {
    color: var(--text-color-dark);
    font-size: 18px;
    margin-bottom: 16px;
  }
  
  .activity article {
    color: var(--text-color-gray);
    /* 字符间距 */
    letter-spacing: 0.54px;
    line-height: 24px;
  }
  
  .activity .read-more-btn {
    border: 0;
    color: #fff;
    background-color: var(--primary-color);
    border-radius: 4px;
    padding: 6px 14px;
    margin-top: 24px;
  }
  
  .activity:hover {
    transform: translateY(-20px) scale(1.05);
    box-shadow: 0 0 36px rgba(0, 0, 0, 0.1);
  }
  
  /* 底部信息 */
  footer {
    margin-top: 124px;
    background-color: #181818;
    display: grid;
    justify-items: center;
    padding-top: 72px;
    padding-bottom: 24px;
  }
  
  .footer-menus {
    width: 100%;
    max-width: 1180px;
    display: grid;
    grid-template-columns: 2fr repeat(4, 1fr);
    padding: 0 80px;
    position: relative;
  }
  
  .menu-title {
    font-size: 16px;
    color: #fff;
    font-weight: 500;
    margin-bottom: 20px;
  }
  
  .contact-us {
    justify-self: start;
    color: var(--text-color-lightest);
  }
  
  .contact-us p:not(:first-child) {
    padding-bottom: 16px;
  }
  
  .menu-items li {
    list-style: none;
    padding-bottom: 8px;
  }
  
  .menu-items li a {
    text-decoration: none;
    font-weight: 300;
    color: var(--text-color-lightest);
  }
  
  .icp-info {
    margin-top: 24px;
    margin-bottom: 16px;
  }
  
  .icp-info, .rights {
    grid-column: 1 / -1;
    /* 倒数第二个 */
    justify-self: center;
    color: white;
  }
  
  .scrollToTop {
    display:none;
  }
  
  .scrollToTop a {
    width: 32px;
    height: 32px;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--primary-color);
    color: #fff;
    text-decoration: none;
    position: fixed;
    right: 30px;
    bottom: 30px;
    z-index: 999;
  }
  
  /* 媒体查询，对页面进行响应式 */
  @media (max-width: 1100px) {
    header nav{
      display: none;
    }
  
    header {
      grid-template-columns: repeat(2, 1fr);
  
    }
  
    header .burger {
      display: block;
      width: 20px;
      height: 6px;
      position: relative;
      justify-self: end;
      cursor: pointer;
    }
  
    .burger-line1,.burger-line2,.burger-line3 {
      width: 20px;
      height: 2px;
      background-color: var(--text-color-lightest);
    }
  
    .burger-line1 {
      position: absolute;
      top: -6px;
    }
  
    .burger-line3 {
      position: absolute;
      top: 6px;
    }
  
    header.open nav {
      display: grid;
      position: absolute;
      left: 0;
      top: 0;
      width: 100vw;
      height: 100vh;
      background-color: #fff;
      grid-auto-rows: max-content;
      justify-items: end;
      padding: 0 40px;
      opacity: 0;
      animation: slideDown 0.6s ease-out forwards;
    }
    
    header.open nav > * {
      color: var(--text-color-dark);
      animation: showMenus 0.5s linear forwards 0.4s;
      font-size: 18px;
      margin: 4px 0;
      opacity: 0;
    }
  
    header.open nav > i.fas {
      margin-top: 10px;
    }
  
    header.sticky .burger-line1,
    header.sticky .burger-line2,
    header.sticky .burger-line3,
    header.open .burger-line1,
    header.open .burger-line2,
    header.open .burger-line3 {
      background-color: var(--text-color-darker);
      transition: 0.4s ease;
    }
  
    header.open .burger-line1 {
      transform: rotate(45deg) translate(3px, 5px);
    }
  
    header.open .burger-line2 {
      transform: translateX(5px);
      opacity: 0;
    }
  
    header.open .burger-line3 {
      transform: rotate(-45deg) translate(3px, -5px);
    }
  
  
    header.open .logo {
      z-index: 40;
      color: var(--text-color-darker);
    }
    
    @keyframes slideDown {
      0% {
        height: 0;
        opacity: 0;
      }
      100% {
        height: 100vh;
        padding-top: 80px;
        opacity: 1;
      } 
    }
    
    @keyframes showMenus {
      0% {
        opacity: 0;
        transform: translateY(-1vh);
      }
      100% {
        opacity: 1;
        transform: translateY(0);
      }
    }
    
    .service-item .service-title {
      font-size: 20px;
    }
    
    .service-item .service-content {
      font-size: 14px;
      line-height: 24px;
    }
    
    .team-members {
      grid-template-columns: repeat(2, 1fr);
      row-gap: 36px;
      column-gap: 6vw;
    }
  
    .activities {
      grid-template-columns: repeat(2, 1fr);
      row-gap: 36px;
    }
  }
  
  @media (max-width: 992px) {
    .slide-caption h1 {
      font-size: 48px;
    }
  
    .slide-caption h3 {
      font-size: 18px;
    }
  
    .features,
    .services {
      grid-template-columns: repeat(2, 1fr);
      grid-template-rows: unset;
    }
  
    .data-section {
      grid-template-columns: repeat(2, minmax(200px, auto));
      padding: 24px 0;
      height: auto;
      row-gap: 24px;
      background-size: 200%;
    }
  
    .showcases .case-item {
      width: calc(100vw / 3);
    }
  }
  
  @media (max-width: 768px) {
    section, .footer-menus {
      padding: 0 40px;
    }
  
    .footer-menus {
      grid-template-columns: 2fr repeat(2, 1fr);
      row-gap: 24px;
    }
  
    .contact-us {
      grid-row: 1 / 3;
    }
  
    .footer-menu {
      text-align: right;
    }
  
    .activities {
      grid-template-columns: 1fr;
      row-gap: 36px;
    }
  
    .data-section {
      grid-template-columns: 1fr;
      background-size: 300%;
    }
  
    .team-members {
      grid-template-columns: minmax(200px, 400px);
    }
  
    .services,
    .features {
      grid-template-columns: 1fr;
    }
  
    .showcases .case-item {
      width: calc(100vw / 2);
      height: 30vw;
    }
  }
  
  @media (max-width: 576px) {
    .slide-caption h1 {
      font-size: 28px;
    }
    .slide-caption h3 {
      font-size: 14px;
    }
  
    .explore-btn {
      font-size: 14px;
      padding: 8px 18px;
    }
  
    .showcases .case-item {
      width: 100vw;
      height: 60vw;
    }
  
    .footer-menus {
      grid-template-columns: 1fr;
    }
    
    .footer-menu {
      justify-self: start;
      text-align: left;
    }
  }



















































































































































